Science

Sunday, 19 April 2026
13 facts about tears
13 facts about tears
Multipurpose liquid
Associated with emotions, tears are a product of lacrimal glands, found in the eyes of most terrestrial vertebrates. Although their primary function i ...

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Amber
Amber has been used as a medicine.
In ancient Rome, amber dust was mixed with honey to cure a sore throat, while mixed with water was u ...
Cosmos
The next stage was the Dark Ages and the formation of large cosmic structures.
This period lasted from 370 thousand to 1 billion years after the Big Bang. During this time, matter ...
Snow
On average, snowflakes are about five millimeters in diameter and weigh about four milligrams.
As temperatures rise, snowflakes become larger as the crystals thaw and then stick together to form ...
Silver
Later, pure silver coins were produced.
The British pound was initially worth 1 pound of 925 silver jewelry.
Nicotine
Nicotine may have a therapeutic effect in patients with neurodegenerative brain diseases.
This is because nicotine affects not only acetylcholine but also other neurotransmitters, especially ...
NASA
On May 12th, 2022, NASA’s Event Horizon Telescope captured the first image of the supermassive black hole at the center of the Milky Way.
Aurora
Auroras take many shapes. They can appear in the form of colored rays, streaks, ribbons, curtains, crowns, arcs, and others.
Mushrooms
Growing in North America, Europe and Asia, a fungus called Hydnellum peckii, secretes a red blood substance on a white hat.
The fungus is inedible, but unfailingly decorative.
Brain
About 25% of the body's cholesterol is contained in the brain.
Mushrooms
Fungi live in symbiosis with microorganisms, higher plants (Embryophyte) and animals.
With many plants, they form mycorrhiza (symbiotic association of roots or seeds of vascular plants w ...